113688973 has 4 divisors (see below), whose sum is σ = 113907708. Its totient is φ = 113470240.

The previous prime is 113688923. The next prime is 113689007. The reversal of 113688973 is 379886311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 379886311 = 7 ⋅54269473.

It can be written as a sum of positive squares in 2 ways, for example, as 73582084 + 40106889 = 8578^2 + 6333^2 .

It is a cyclic number.

It is not a de Polignac number, because 113688973 - 2⁹ = 113688461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113688923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108586 + ... + 109627.

It is an arithmetic number, because the mean of its divisors is an integer number (28476927).

Almost surely, 2^113688973 is an apocalyptic number.

It is an amenable number.

113688973 is a deficient number, since it is larger than the sum of its proper divisors (218735).

113688973 is an equidigital number, since it uses as much as digits as its factorization.

113688973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218734.

The product of its digits is 217728, while the sum is 46.

The square root of 113688973 is about 10662.5031301285. The cubic root of 113688973 is about 484.4393890844.

It can be divided in two parts, 1136 and 88973, that added together give a palindrome (90109).

The spelling of 113688973 in words is "one hundred thirteen million, six hundred eighty-eight thousand, nine hundred seventy-three".